For sure, I'll only be doing a limited run of casting because I find resin tends to destroy the RTV I'm using alarmingly quickly (usually after 10-15 casts) but if you're interested drop me a PM and we can discuss what you want and costs.
Alternately just email me at tabletop_terrain@fastmail.fm
At some point they'll go up on the online store at my blog, but not until I've updated the software I'm using for that, which is all that's stopping me a the moment!